Explanation

• Gamma rays have the highest penetrating power among these particles.
• Due to their lack of mass and charge.
• It allowing them to pass through most materials.

Additional information:

• Alpha radiation has the lowest penetrating power.

Last verified on 12-04-2026

Explanation

• Shah Wali Ullah Dehlawi translated the Holy Quran into Persian language for the first time in the Indian subcontinent.

Additional information:

• Real Name: Qutb-ud-Din Ahmad Shah Wali Ullah
• Born: 21 February 1703, Phulat (Mughal Empire)
• Died: 20 August 1762, Delhi

Last verified on 11-05-2026

Explanation

• Almost all the mass of an atom is concentrated in its nucleus.
• The nucleus contains protons and neutrons, which are much heavier than electrons.
• Electrons revolve around the nucleus but contribute very little to atomic mass.
• The nucleus is located at the center of the atom.
• Ernest Rutherford discovered the nucleus through the gold foil experiment in 1911.

Last verified on 09-05-2026

Explanation

• RAM is the main temporary memory of a computer.
• It stores data and instructions while the computer is working.
• When power is off, RAM data is erased.

Additional information:

• ROM → Permanent memory (read-only)
• Hard Disk → Long-term storage
• SSD → Fast permanent storage
• Cache Memory → Ultra-fast CPU memory

Last verified on 07-05-2026

Explanation

• An angle inscribed in a semicircle is always 90° due to the Thales' Theorem.
• It is called a right angle because the angle subtended by a diameter is always right.

Last verified on 06-05-2026

Explanation

1. The Quran
2. The Sunnah (traditions of the Prophet Muhammad SAW)
3. Ijma (consensus among Muslim jurists)
4. Qiyas (analogy)

Last verified on 30-04-2026

Explanation

Given that the radius of a circle is increased to twice its original length

We have to find the increase in the area of the circle

Area of circle = πr²

Where r is the radius of the circle

Now, r = 2r

Area of circle = π(2r)²

= 4πr²

Last updated by NA on 27 April 2026

Explanation

Compare the probabilities:  

Getting odd on die = 0.33

Getting head on coin = 0.50

0.50 > 0.33, so getting a head is more likely.

Last verified on 14-04-2026

Explanation

t⁴ - 16 = (t²)² - 4² = (t² - 4)(t² + 4) = (t - 2)(t + 2)(t² + 4)

(t² + 4)(t + 2)(t - 2)

Last verified on 14-04-2026

Explanation

Area of flag = 3 m × 2 m = 6 m²  

Cost = 6 × Rs. 75 = Rs. 450  

Last verified on 14-04-2026